1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nignag [31]
3 years ago
14

Ten people split up into five groups of two each. in how many ways can this be done?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
8 0
Input into your calculator, 10C2 x 8C2 x 6C2 x 4C2 x 2C2
You might be interested in
Picture attached multiple choice :3
nikklg [1K]

it is C. i think because this i looked it up trust me

8 0
3 years ago
2. Convert 9% to a fraction and a decimal.
Furkat [3]

Answer:

0.09 decimal 9/100 fraction

Step-by-step explanation:

4 0
3 years ago
Reflect the triangle across the y-axis, and then translate the image 5 units down.
Ksju [112]

Step-by-step answer:

It is a glide reflection.

The order of sliding and reflection is not important if the gliding is parallel to the line of reflection, which is the case here.

So the equivalent is translate five units down, and then reflect over the y-axis.

Note in general that rotations will not be equivalent to an odd number of reflections.  So looking for an equivalent, look for reflection.

8 0
3 years ago
Read 2 more answers
Find the distance between the points (-7, -6) and (-3, 0).
FrozenT [24]

Answer:

7.21 unit

Step-by-step explanation:

distance= √[(-7+3)^2 + (-6-0)^2]

= 7.21 unit

5 0
3 years ago
At 7:00 A.M., Alicia pours a cup of tea whose temperature is 200°F. The tea starts to cool to room temperature (72°F). At 7:02 A
alexgriva [62]

Answer: A) Option B

B) 22.3 minutes.

Step-by-step explanation:

The temperature decreases in an exponential decrease, this means that we can write the equation as:

T(x) = A*r^x + B

Where A is the difference between the initial temperature and the room temperature, B is the room temperature, and r is a positive number smaller than 1, that says "how fast" the temperature decreases (and x is the variable, in units of time)

We know that the initial temperature

A = 200° - 72° = 128°

B = 72°

T(x) = 128°r^x + 72°

The only option with those two values is option B.

T(x) =  128(0.989)^x + 72

We should check that when x = 2m, the temperature must be 197°

T(2m) = 128*(0.989)^2 + 72 = 197.2° (that we can round down to 197°)

So this equation is correct

Now we want to find the time such the temperature is 172°F

then:

172° = 128°(0.989)^x + 72°

100° = 128°(0.989)^x

100/128 = (0.989)^x

x = ln(100/128)/ln(0.989) = 22.3 minutes.

Let's check in our equation:

T(22.3) =  128°(0.989)^22.3 + 72 = 172°

8 0
3 years ago
Other questions:
  • The area of a rectangle is 18r^2 - 27r - 35 square inches. The width is 3r - 7 inches. What is the length in inches?
    11·1 answer
  • Which of the following equations represents a proportional relationship? (There is a Picture) I need the answer ASAP!
    9·1 answer
  • Given the initial point (2, 3), which other three points would make an isosceles trapezoid on the coordinate plane?
    13·1 answer
  • Im stuck help me pls thank you
    5·1 answer
  • Solve: 3/x-4 >0 A.x -4 C.x>4 D.x<-4
    7·1 answer
  • You are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown
    13·1 answer
  • Eric Tangler prism with the value of 10 cubic units is filled with cubes the side lengths of 1/2 unit how many 1/2 unit cubes do
    15·1 answer
  • A necklace is regularly sold for $18.00. The sore advertises a
    13·1 answer
  • Use GCF to factor <br> 40x+24y-56
    15·2 answers
  • Please solve for me ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!